Light has properties that tell us how it moves and interacts with things around it, like when it goes through something or gets taken in by it.
Imagine you're playing with a flashlight in a dark room. When you turn it on, the light shines out and reaches your toys, that’s transmit. It's like water going through a straw: the water moves from one end to the other, just like light moving through something clear, like glass or air.
Now, think about putting a blanket over your toys. The light can’t reach them anymore because the blanket absorbs the light, it takes it in, like how a sponge soaks up water. If you use a red blanket, some colors might peek through, but others get swallowed up by the blanket.
What Makes Light Go Through or Get Taken In?
Some things let light pass right through them, like window glass. Others stop it cold, like a thick book. The reason? It all depends on what the light meets: if it’s something clear and thin, light goes through; if it’s thick or colored, it might get absorbed or even reflected, like when you shine light on a shiny toy, it bounces back!
Examples
- A flashlight beam passes through a clear glass, but stops when it hits a black curtain.
- When you shine a lamp on your face, some light reflects back to your eyes.
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See also
- What is Incident light?
- Why Can't You Catch Your Own Shadow?
- How Does Converging Lens Demo Work?
- How Does HOT: Optomechanical optical circulator Work?
- How Does Aspherical Lens Work?